A police statement said 119 arrests were made for public order offences in the city and a total of 134 in the wider Catalan region.

A total of 153 people were injured, said the statement. While most of the injuries were minor, 23 needed hospital treatment.

Spain's TVE public television said one of its cameramen was among those hurt.

The statement said police had issued "repeated warnings" to the rioters.

The celebrations had started peacefully as thousands of joyous fans, many draped in the dark red and blue of their club, let off fireworks and honked horns.

"Yes, yes, yes, the Cup is here," shouted supporters.

"I am so happy, we deserved this victory. We're going to stay out all night as long as the police don't move us on," said one young fan, Jordi, at the Canaletes fountain on the Ramblas, where fans traditionally celebrate.

Many fans mocked rivals Real Madrid, who ended the season trophy-less -- Barca's own fate for the past two seasons until this term under new coach Pep Guardiola.

Several other towns in the Catalan region such as Tarragona, Gerona and Lleida also celebrated.

And in the Spanish capital, Catalans jumped into the fountain in the Plaza Cibeles, the traditional site for celebrations by Real supporters.

Barca fans had already twice gorged on success in recent days after their team won the Spanish title and lifted the Spanish Cup.